./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/num_conversion_1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_4e84e123-9587-48fa-9dbb-4bcfb8fbdd97/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_4e84e123-9587-48fa-9dbb-4bcfb8fbdd97/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_4e84e123-9587-48fa-9dbb-4bcfb8fbdd97/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_4e84e123-9587-48fa-9dbb-4bcfb8fbdd97/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector/num_conversion_1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_4e84e123-9587-48fa-9dbb-4bcfb8fbdd97/bin/uautomizer/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_4e84e123-9587-48fa-9dbb-4bcfb8fbdd97/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 22f8891fc10bb8c305de18eb9540699e7b8a01ce ........................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud-vcloud-master/worker/run_dir_4e84e123-9587-48fa-9dbb-4bcfb8fbdd97/bin/uautomizer/config using search string *Overflow*32bit*_Bitvector*.epf No suitable settings file found using Overflow*32bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 03:08:25,927 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:08:25,929 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:08:25,967 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:08:25,968 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:08:25,970 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:08:25,971 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:08:25,974 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:08:25,976 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:08:25,978 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:08:25,979 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:08:25,980 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:08:25,981 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:08:25,982 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:08:25,984 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:08:25,985 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:08:25,986 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:08:25,987 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:08:25,989 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:08:25,992 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:08:25,993 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:08:25,995 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:08:25,997 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:08:25,998 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:08:26,002 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:08:26,002 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:08:26,003 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:08:26,004 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:08:26,005 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:08:26,006 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:08:26,007 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:08:26,008 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:08:26,009 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:08:26,010 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:08:26,011 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:08:26,012 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:08:26,013 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:08:26,013 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:08:26,014 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:08:26,015 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:08:26,016 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:08:26,018 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_4e84e123-9587-48fa-9dbb-4bcfb8fbdd97/bin/uautomizer/config/svcomp-Overflow-32bit-Automizer_Default.epf [2020-11-28 03:08:26,041 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:08:26,042 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:08:26,043 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:08:26,043 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:08:26,044 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:08:26,044 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:08:26,044 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:08:26,045 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 03:08:26,045 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:08:26,045 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:08:26,045 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:08:26,046 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:08:26,046 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:08:26,046 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:08:26,047 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-28 03:08:26,047 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:08:26,047 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:08:26,048 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:08:26,048 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:08:26,048 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:08:26,048 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:08:26,049 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:08:26,049 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:08:26,049 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:08:26,050 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:08:26,050 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:08:26,050 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:08:26,050 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:08:26,051 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:08:26,051 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:08:26,051 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:08:26,051 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_4e84e123-9587-48fa-9dbb-4bcfb8fbdd97/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_4e84e123-9587-48fa-9dbb-4bcfb8fbdd97/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 22f8891fc10bb8c305de18eb9540699e7b8a01ce [2020-11-28 03:08:26,414 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:08:26,449 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:08:26,451 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:08:26,452 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:08:26,458 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:08:26,459 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_4e84e123-9587-48fa-9dbb-4bcfb8fbdd97/bin/uautomizer/../../sv-benchmarks/c/bitvector/num_conversion_1.c [2020-11-28 03:08:26,543 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4e84e123-9587-48fa-9dbb-4bcfb8fbdd97/bin/uautomizer/data/ca684c5ba/01119da75c46434892cd01cc3d784ed2/FLAG0ca234f46 [2020-11-28 03:08:27,078 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:08:27,078 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_4e84e123-9587-48fa-9dbb-4bcfb8fbdd97/sv-benchmarks/c/bitvector/num_conversion_1.c [2020-11-28 03:08:27,090 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4e84e123-9587-48fa-9dbb-4bcfb8fbdd97/bin/uautomizer/data/ca684c5ba/01119da75c46434892cd01cc3d784ed2/FLAG0ca234f46 [2020-11-28 03:08:27,428 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_4e84e123-9587-48fa-9dbb-4bcfb8fbdd97/bin/uautomizer/data/ca684c5ba/01119da75c46434892cd01cc3d784ed2 [2020-11-28 03:08:27,431 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:08:27,433 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:08:27,440 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:08:27,440 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:08:27,444 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:08:27,446 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:08:27" (1/1) ... [2020-11-28 03:08:27,448 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@207ef1fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:27, skipping insertion in model container [2020-11-28 03:08:27,448 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:08:27" (1/1) ... [2020-11-28 03:08:27,456 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:08:27,472 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:08:27,655 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:08:27,665 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:08:27,696 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:08:27,722 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:08:27,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:27 WrapperNode [2020-11-28 03:08:27,723 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:08:27,724 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:08:27,725 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:08:27,727 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:08:27,735 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:27" (1/1) ... [2020-11-28 03:08:27,744 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:27" (1/1) ... [2020-11-28 03:08:27,766 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:08:27,767 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:08:27,768 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:08:27,768 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:08:27,777 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:27" (1/1) ... [2020-11-28 03:08:27,777 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:27" (1/1) ... [2020-11-28 03:08:27,791 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:27" (1/1) ... [2020-11-28 03:08:27,792 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:27" (1/1) ... [2020-11-28 03:08:27,796 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:27" (1/1) ... [2020-11-28 03:08:27,805 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:27" (1/1) ... [2020-11-28 03:08:27,808 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:27" (1/1) ... [2020-11-28 03:08:27,810 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:08:27,816 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:08:27,816 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:08:27,817 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:08:27,818 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:27" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4e84e123-9587-48fa-9dbb-4bcfb8fbdd97/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:08:27,893 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:08:27,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:08:27,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:08:27,894 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:08:28,174 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:08:28,180 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-28 03:08:28,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:08:28 BoogieIcfgContainer [2020-11-28 03:08:28,181 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:08:28,183 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:08:28,183 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:08:28,196 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:08:28,197 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:08:27" (1/3) ... [2020-11-28 03:08:28,197 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23ab36a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:08:28, skipping insertion in model container [2020-11-28 03:08:28,198 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:27" (2/3) ... [2020-11-28 03:08:28,198 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23ab36a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:08:28, skipping insertion in model container [2020-11-28 03:08:28,198 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:08:28" (3/3) ... [2020-11-28 03:08:28,199 INFO L111 eAbstractionObserver]: Analyzing ICFG num_conversion_1.c [2020-11-28 03:08:28,217 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:08:28,220 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2020-11-28 03:08:28,231 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-11-28 03:08:28,257 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:08:28,257 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:08:28,257 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:08:28,270 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:08:28,270 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:08:28,270 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:08:28,270 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:08:28,271 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:08:28,286 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2020-11-28 03:08:28,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-28 03:08:28,293 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:08:28,293 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-28 03:08:28,294 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-28 03:08:28,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:28,300 INFO L82 PathProgramCache]: Analyzing trace with hash 925796, now seen corresponding path program 1 times [2020-11-28 03:08:28,307 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:08:28,307 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722698937] [2020-11-28 03:08:28,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:08:28,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:08:28,394 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:08:28,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:08:28,413 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:08:28,433 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:08:28,434 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 03:08:28,434 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:08:28,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:08:28 BoogieIcfgContainer [2020-11-28 03:08:28,453 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:08:28,454 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:08:28,454 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:08:28,454 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:08:28,455 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:08:28" (3/4) ... [2020-11-28 03:08:28,458 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-28 03:08:28,458 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:08:28,460 INFO L168 Benchmark]: Toolchain (without parser) took 1025.78 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 49.5 MB in the beginning and 75.4 MB in the end (delta: -25.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:08:28,460 INFO L168 Benchmark]: CDTParser took 0.94 ms. Allocated memory is still 86.0 MB. Free memory is still 65.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:08:28,461 INFO L168 Benchmark]: CACSL2BoogieTranslator took 283.93 ms. Allocated memory is still 86.0 MB. Free memory was 49.3 MB in the beginning and 64.2 MB in the end (delta: -14.9 MB). Peak memory consumption was 5.8 MB. Max. memory is 16.1 GB. [2020-11-28 03:08:28,462 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.59 ms. Allocated memory is still 86.0 MB. Free memory was 64.2 MB in the beginning and 62.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:08:28,463 INFO L168 Benchmark]: Boogie Preprocessor took 47.33 ms. Allocated memory is still 86.0 MB. Free memory was 62.7 MB in the beginning and 61.7 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:08:28,464 INFO L168 Benchmark]: RCFGBuilder took 365.86 ms. Allocated memory is still 86.0 MB. Free memory was 61.7 MB in the beginning and 49.7 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 03:08:28,465 INFO L168 Benchmark]: TraceAbstraction took 270.57 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 49.3 MB in the beginning and 75.8 MB in the end (delta: -26.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:08:28,465 INFO L168 Benchmark]: Witness Printer took 3.84 ms. Allocated memory is still 104.9 MB. Free memory is still 75.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:08:28,470 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.94 ms. Allocated memory is still 86.0 MB. Free memory is still 65.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 283.93 ms. Allocated memory is still 86.0 MB. Free memory was 49.3 MB in the beginning and 64.2 MB in the end (delta: -14.9 MB). Peak memory consumption was 5.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 41.59 ms. Allocated memory is still 86.0 MB. Free memory was 64.2 MB in the beginning and 62.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 47.33 ms. Allocated memory is still 86.0 MB. Free memory was 62.7 MB in the beginning and 61.7 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 365.86 ms. Allocated memory is still 86.0 MB. Free memory was 61.7 MB in the beginning and 49.7 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 270.57 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 49.3 MB in the beginning and 75.8 MB in the end (delta: -26.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 3.84 ms. Allocated memory is still 104.9 MB. Free memory is still 75.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 24]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of shiftLeft at line 24. Possible FailurePath: [L16] unsigned char x; [L17] unsigned char y; [L18] unsigned char c; [L20] x = 37 [L21] y = 0 [L22] c = 0 [L23] COND TRUE c < (unsigned char)8 [L24] ((unsigned char)1) << c - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 24 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...